If you have to head out into the cold, especially with the kids, there's a proper way to bundle everyone up.

Children and the elderly are most at risk for frostbite, so there are a few important things to keep in mind.

When it comes to bundling up, your fingers and ears are the most at risk. So, if you have a choice between gloves and mittens, go with mittens, since the heat of the hand can be trapped inside them.

One thing you or your kids should never leave home without is a scarf.

"A scarf should be wrapped around the face to cover the nose, and you should have the scarf over your ears, a hat over your ears, earmuffs over your ears - something to cover your ears - so all of those parts need to be covered," said Dr. Deborah Lonzer, with the Cleveland Clinic Children's Hospital.

No matter how old you are, being dehydrated or exhausted can increase your chances for frostbite. Even if you don't feel thirsty, it's important to keep drinking water on cold winter days.

And the Mayo Clinic notes that if you have diabetes, peripheral neuropathy or circulatory problems, you could also have an increased risk of frostbite.